Struct esri_ascii_grid::header::EsriASCIIRasterHeader

pub struct EsriASCIIRasterHeader<T, U>
where
    T: Numerical,
    U: Numerical,
{
    pub ncols: usize,
    pub nrows: usize,
    pub xll: T,
    pub yll: T,
    pub yur: T,
    pub xur: T,
    pub cornertype: CornerType,
    pub cellsize: T,
    pub nodata_value: Option<U>,
}

A reader for ESRI ASCII raster files. This reader reads the header of the file and then reads the data on demand. The data is cached in memory, so that the file is only read once.

Type Parameters

• R - The type of the file. This should be a file that implements Read and Seek.
• T - The type of the coordinates. Should be a number.
• U - The type of the height values in the grid. Should be a number

Fields

ncols: usize

nrows: usize

xll: T

yll: T

yur: T

xur: T

cornertype: CornerType

cellsize: T

nodata_value: Option<U>

Implementations

impl<T, U> EsriASCIIRasterHeader<T, U>

where T: Numerical, Error: From<<T as Numerical>::Err> + From<<U as Numerical>::Err>, U: Numerical,

pub fn new( ncols: usize, nrows: usize, xll: T, yll: T, cornertype: CornerType, cellsize: T, nodata_value: Option<U> ) -> Self

pub fn num_rows(&self) -> usize

pub fn num_cols(&self) -> usize

pub fn min_x(&self) -> T

pub fn max_x(&self) -> T

pub fn min_y(&self) -> T

pub fn max_y(&self) -> T

pub fn cell_size(&self) -> T

pub fn no_data_value(&self) -> Option<U>

pub fn corner_type(&self) -> CornerType

ESRI ASCII files can have either a corner or center cell type.

If the cell type is corner, the values are the at coordinates of the bottom left corner of the cell.

If the cell type is center, the values are the at coordinates of the center of the cell.

pub fn index_pos(&self, row: usize, col: usize) -> Option<(T, T)>

Get the x and y coordinates of the cell at the given row and column, or nothing if it is out of bounds.

pub fn index_of(&self, x: T, y: T) -> Option<(usize, usize)>

Get the row and column index of the cell that contains the given x and y, or nothing if it is out of bounds.

Trait Implementations

impl<T, U> Clone for EsriASCIIRasterHeader<T, U>

where T: Numerical + Clone, U: Numerical + Clone,

fn clone(&self) -> EsriASCIIRasterHeader<T, U>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T, U> Debug for EsriASCIIRasterHeader<T, U>

where T: Numerical + Debug, U: Numerical + Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T, U> Copy for EsriASCIIRasterHeader<T, U>

where T: Numerical + Copy, U: Numerical + Copy,